Security & Protection

Security refers to free from threat and no danger, no harm, no loss. It refers to control the damage under the state that human can receive. The system running state may do damage to human’s life, property and environment, during human’s productive process. Protection refers to protect the human landscapes which have special values (historical value, culture value and so on), and protect the historical remains, especially the building environment. The catalogue includes alarm, fire-fighting, surveillance equipment, safety products, and roadway safety and other secondary catalogues.

A mixture of hydrocarbon gases that occurs with petroleum deposits, principally methane together with varying quantities of ethane, propane, butane, and other gases, and is used as a fuel and in the manufacture of organic compounds.